JP2651360B2 - Method of manufacturing ceramic tile having blur pattern - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a method for manufacturing a ceramic tile.

[0002]

2. Description of the Related Art Various methods have been conventionally employed as a coloring method used in a method of manufacturing a ceramic tile having a pattern on its surface. For example, (1) a method in which a pattern original is formed in advance on a molded body main body in an uneven shape and then glaze is applied to represent the pattern, and (2) different types are used to finally express the pattern on the surface of the molded body main body. Whether to apply multiple glazes separately
Sketch, the method according to the transfer of the printed figures, (3) glazed method representing a pattern by removing a portion of the surface, (4) uniquely colored coloring metal oxides in the glaze by controlling the oxidation reduction atmosphere during sintering The method of making it do is adopted.

[0003]SaidFor the methods (1) and (2),
Regular patternCeramic tileManufacturing method
Suitable, A ceramic with a quaint blur pattern
It is not suitable as a method for manufacturing quartiles.In addition,
In the methods (3) and (4), express interesting patterns
Is possible, Except for the type of art that is produced individually
ManySide by side ceramic tilesMainly buildings
The ceramics that make up the wall Suitable for the production of
do not do.

[0004]

SUMMARY OF THE INVENTION The present invention
Unique quaint blur with no problems seen in each method
And it will readily produce a glazed ceramic tile with a like
Is what you do.

[0005]

Means for Solving the Problems To solve the above problems,
The gist of the present invention that has been made is to form a plurality of elliptical dents by pressing the back surface of a green ceramic body after forming the green body into a plate- shaped green body, and then obtaining as described above. By applying a glaze to the surface of the formed green body and firing it, a plurality of shallow elliptical hollows are generated on the surface corresponding to the plurality of hollows on the back surface due to partial heat shrinkage accompanying firing of the green body. Along with the melt flow of the glaze on the surface
The surface is almost flat around the shallow elliptical recess
Blur pattern characterized by being formed on a glazed surface
In a method for manufacturing a ceramic tile having the same.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on embodiments. 5-15% feldspar, 10 quartzite as ceramic base
２０20%, porcelain stone 15-20%, wax stone 15-25%, limestone 3-5%, clay material 25-40% are mixed and pulverized according to a conventional method to form a molding base having a water content of 7-10%. It was created. 11 × length and width by press molding using this molding base
It was formed into a plate-shaped forming base having a thickness of 8 cm and a thickness of 6 mm. Then, the back surface of the green body was pressed with an egg-shaped mold to form four elliptical hollows of about 4 × 2.5 cm each having a depth of about 1.5 mm at the center of each. Then, after drying the molded body, the surface as the first glaze,
A zirconia white glaze melting at about 1100 ° C. was applied, and a transparent glaze containing cobalt blue pigment and melting at about 1050 ° C. was applied thereon as a second glaze. When the glaze molding base obtained in this way was fired at 1100 to 1200 ° C., the four glaze molding bases formed on the back surface of the molding base were obtained.
The surface of the green body corresponding to the elliptical depression is heat shrunk
Kubo only shallow oval caused by, as a result, after firing
The surface of the fired product of No. 1 is grounded around a shallow elliptical depression corresponding to the elliptical depression on the back surface, with the first glaze being white, and the second glaze being cobalt.
A glazed surface with a nearly flat surface with a blue tint
Is formed here and has a very quaint blur pattern
A ceramic tile was obtained.

In the present invention, any material such as ceramic, semi-porcelain, and porcelain can be selected as the ceramic green body. Also, as the molding dimensions,
There is no limitation on the area, and the thickness can be determined appropriately as long as a shallow depression is generated on the surface by firing the glaze.

In the above embodiment, two types of glazes are used as the glaze. However, the present invention is not limited to this, and a plurality of glazes may be used as long as a blur pattern is obtained.
Types may be used. Further , the glaze used may be either a transparent glaze or an opaque glaze, but the uppermost glaze is preferably a transparent glaze, and in particular, a colored transparent glaze has a shallow elliptical surface.
Due to slight unevenness of the almost flat glazed surface caused by dents
Delicate blur pattern due to the influence of diffuse reflection of external rays
To appear. Further, as a glaze, the color tone is changed by recrystallization glaze or firing atmosphere crystallizes special crystal by firing
A glaze can be used.

[0009]

As described above, the blur of the present invention is
According to the method for producing a ceramic tile having a pattern ,
With a simple operation, it is possible to easily produce a ceramic tile having a peculiar blur pattern, which is particularly suitable for interior decoration and decoration, and is of great industrial value.

Claims (1)

(57) [Claims] 1. A ceramic green body is formed into a plate-like molded body.
After the molding , the back surface is pressed to form a plurality of elliptical cavities , and then the surface of the molded body obtained as described above is glazed and fired to form a plurality of the back surfaces. A plurality of shallow elliptical depressions are generated on the surface corresponding to the depressions by partial heat shrinkage accompanying the firing of the molding base, and the shallow elliptical depressions are formed by the melt flow of the glaze on the surface .
Formed on a glazed surface with a nearly flat surface centered around the hollow
A method for producing a ceramic tile having a blurred pattern .